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Heat exchanger

A technology of heat exchangers and heat exchange tubes, which is applied in the fields of refrigeration, transportation, HVAC, and automobiles. It can solve problems such as uneven distribution of two-phase refrigerants, save time and resources, increase heat exchange area, and increase The effect of heat transfer performance

Active Publication Date: 2015-03-25
DANFOSS MICRO CHANNEL HEAT EXCHANGER JIAXING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] One of the purposes of the present invention is to solve the problem of uneven distribution of two-phase refrigerant in heat exchangers such as microchannel heat exchangers

Method used

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Embodiment Construction

[0040] Through the following examples, combined with the attached Figure 1-6 , the technical solution of the present invention will be further specifically described. In the specification, the same or similar reference numerals designate the same or similar components. The following description of the embodiments of the present invention with reference to the accompanying drawings is intended to explain the general inventive concept of the present invention, but should not be construed as a limitation of the present invention.

[0041] see figure 1, shows a side partial cross-sectional view of a heat exchanger 100 according to a first embodiment of the present invention. The heat exchanger 100 includes an inlet header 10 located at the lower part of the heat exchanger 100, an outlet header 20 located at the upper part of the heat exchanger 100, and at least one valve connected between the inlet header 10 and the outlet header 20. One or more heat exchange tubes (not shown)...

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Abstract

The invention discloses a heat exchanger. The heat exchanger comprises an inlet collecting pipe, an outlet collecting pipe, and a heat exchange pipe and a gas guide pipe connected between the inlet collecting pipe and the outlet collecting pipe, wherein the inlet collecting pipe comprises at least two spacing chambers; the at least two spacing chambers consist of a vapor and liquid two-phase state refrigerant spacing chamber for accommodating vapor and liquid two-phase state refrigerant entering the inlet collecting pipe, and a liquid-state refrigerant spacing chamber for accommodating the separated liquid-state refrigerant; the vapor and liquid two-phase state refrigerant entering the inlet collecting pipe is firstly accommodated in the vapor and liquid two-phase state refrigerant spacing chamber for separating; the liquid-state refrigerant enters the liquid-state refrigerant spacing chamber, and enters the heat exchange pipe for heat exchange; then, the liquid-state refrigerant enters the outlet collecting pipe; and finally, vapor-state refrigerant is leaded into the outlet collecting pipe by the gas guide pipe.

Description

technical field [0001] The invention relates to the fields of HVAC, automobiles, refrigeration and transportation, in particular to heat exchangers such as microchannel evaporators, parallel flow evaporators and heat pumps. Background technique [0002] At present, finned copper tube heat exchangers are still the main air conditioner heat exchangers on the market, but finned copper tube heat exchangers have problems such as high cost, poor electrical corrosion resistance, and complicated welding processes. [0003] When the heat exchanger is used as an evaporator, the refrigerant entering the heat exchanger is a two-phase refrigerant or refrigerant. In particular, whether the liquid refrigerant can be evenly distributed to each channel or heat exchange tube for heat exchange is a key issue. The design of this type of heat exchanger is critical. At present, microchannel heat exchangers generally have the problem of uneven distribution of two-phase refrigerant, which leads to...

Claims

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Application Information

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IPC IPC(8): F25B39/02
CPCF25B39/02F25B43/00F25B2400/23F25B2500/18F28D1/05366F28D2021/0085F28F9/0204F28F9/026F25B39/028F25B2500/05F25B2500/06
Inventor 蒋建龙徐阳
Owner DANFOSS MICRO CHANNEL HEAT EXCHANGER JIAXING
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